1 I didn't clean my teeth at five o'clock in the morning.
2 I didn't thank Mother after breakfast.
3 I didn't help my father.
4 I didn't help my mother to wash up.
5 I didn't clean the house.
6 I didn't want to help mother.
7 I didn't play chess with my mother.
8 I didn't watch television at six o'clock in the morning.
9 I didn't live in Africa.